Avaddon Ransomware
Avaddon is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on June 1, 2020, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: Avaddon Doxware.
Quick facts
How Avaddon ransomware works
File encryption patterns
Avaddon modifies encrypted files using specific patterns to mark them as encrypted:
Ransom note and payment demands
After encrypting files, Avaddon displays ransom notes demanding payment for file recovery:
notes/readme.html
notes/1_readme.html
notes/STdKp4_readme.txt
notes/265155-readme.html
notes/bckgrd.png
Technical indicators
Associated executable files
The following executable files are associated with Avaddon ransomware:
- software.exe
- file.exe
- program.exe
- executable.exe
- old.exe
- sava.exe
- jpr.exe
- img05960602020-jpg.scr
- temp27472466.exe
- 5737263.exe
- vget.exe
- vnget.exe
- 5203508738.exe
- 646246465.exe
- 647274456.exe
- 6247427.exe
- 237502353.exe
- taskhost.exe
- wtava_1.exe
- tava_1.exe
- tava.exe
- wtava.exe
- tspm.exe
- 4939394.exe
- 7865336.exe
- 75365357.exe
- temp377346.exe
- 05750050.exe
- 5893938.exe
- 58839304.exe
- bit4bc0.tmp
- lkx999.exe
- SendDebugLog.exe
- 1.exe
- QkpxnTb.exe
- rdp.exe
- rdp.bin.exe
- Avaddon.exe
- exe_PPHK.exe
About this analysis
This Avaddon ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery, helping organizations defend against and recover from ransomware attacks like Avaddon.
Last updated: December 30, 2025
Elastio detects Avaddon inside your data and backups.
The Hunt Engine uses Deep File Inspection to identify Avaddon across live data, replicated data, and backups. If this family is in your environment, Elastio finds it before encryption completes. Run a scan against your recovery points to confirm.
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